How do I know if someone has put the car recorder?

To determine whether a vehicle is equipped with a dash cam, you can check for a small camera device near the interior rearview mirror or above the windshield. Such devices typically have indicator lights or a micro screen, and some models also have an external power cord. If the device is integrated into the original factory infotainment system (such as in some Honda or BMW models), you can check if there is a "Dash Cam" option in the infotainment menu. Additionally, inspecting the glove box or under the seats for an SD card reader slot is another common characteristic of covert dash cams. Current regulations mandate that dash cams must be installed without obstructing the driver's field of vision, so they are predominantly positioned in the central upper area of the windshield and typically measure less than 8 cm × 5 cm. For further verification, you can start the vehicle and listen for audible alerts from the device (such as "Recording started"), or examine whether supplementary power adapters are connected to the cigarette lighter/USB ports. Professionally installed dash cam wiring is typically concealed behind the A-pillar trim panels, serving as an additional identifying feature.